GoKawiilOura confirms Ring 4 battery defects, discloses $84.4M warranty cost in IPO filing
Oura has acknowledged in SEC paperwork filed ahead of its IPO that some Ring 4 units suffered battery performance problems, which contributed to an $84.4 million rise in warranty expenses during fiscal 2025. The company replaced affected rings free of charge, sometimes even after the standard one-year warranty had lapsed. Oura has not specified which production batches were affected.
GoKawiil's interpretation of the reporting above, not reported fact.
This is the first official confirmation of an issue long reported anecdotally by users, and the scale of warranty spending suggests the problem was more widespread than casual complaints implied. For a wearable meant to be worn continuously, unpredictable battery drain undermines its core value proposition, and the disclosure during IPO preparation could raise investor scrutiny over product quality and future liability.
- Oura disclosed the battery defect in SEC filings tied to its upcoming IPO.
- Warranty expenses jumped $84.4 million in fiscal 2025, partly due to Ring 4 issues.
- Affected owners, even those outside warranty, may be able to get free replacements.
Oura Ring 4 Smart Ring — The Ring 4 is still one of the sleekest sleep and recovery trackers you can wear, with titanium construction and around-the-clock readiness, sleep, and heart rate insights. And as the article notes, Oura has been replacing affected units free of charge — even beyond the one-year warranty — so buyers aren't left holding a dud.
See Oura Ring 4 Smart Ring on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: androidauthority.com, 2026-09-07
Published there as: “Oura finally confirms Ring 4 has a battery problem, and the fallout is staggering”
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